Key items in a tensile test report:

- Yield strength (Rp0.2): the stress at which the material begins to deform plastically; a core indicator for design and material selection. - Tensile strength (Rm): the maximum stress before fracture. - Elongation (A): elongation after fracture, reflecting plasticity; important for bending and deep drawing.

Notes: - Sampling direction: longitudinal (rolling direction) and transverse properties differ; the report should state the direction. - Specimen shape and gauge length affect the elongation value. - Austenitic stainless steel has no obvious yield plateau; use Rp0.2.

When checking a report, verify the test standard (GB/T 228.1 or ASTM A370) and the sampling location.